Here's one nice crossover between Philosophy and Cognitive
   Science: Heidegger.

   Heidegger proposed in the late 1920s that a person's tools
   becomes a part of them as they work.

   About two years ago - nearly 100 years after Heidegger , fMRI
   scans proved Heidegger was correct, as part of their embodied
   cognition experiments.

   In short, when you use a hammer, your brain-map of "self"
   EXTENDS to _INCLUDE THE HAMMER_. The hammer becomes a part of
   *you*, quite literally.

   Same is true for experienced car drivers. Your mental body-space
   extends outwards to include the entire car. That's why we can
   drive at all and avoid accidents, park and such. The machine
   becomes a part of us in our mental maps.

   So, that's a nice bit of Heidegger that's been proven true, at
   least to my satisfaction smile emoticon